A system measures traffic in a device. The system tracks an amount of data and the data units and predicts the amount of padding associated with the data units. The system determines the amount of traffic in the device based on the predicted padding, the amount of data, and the number of data units....http://www.google.com/patents/US7844697?utm_source=gb-gplus-sharePatent US7844697 - Measuring network traffic based on predicted amount of padding